Automobile-frame.



No. 813,175. PATENTED FEB. 20, 1906.

A. z. SGHAAF & P. s. DAVIS AUTOMOBILE FRAME.

APPLIOATION FILED AUG. 27, 1904.

NVENTURSI WITNESSES: v

composed of members of this character withthe beads 6.

NTTED STATES PAENT ALBERT E. SQHAAF AND FRANK S. DA vlavOF TOLEDO, @HIO.

Au'roMosuE-FRiawiE.

No. 813,175. Specification of ll'aetters Patent. Patented Feb. 20, 1906. Application filed August 2'7, 1904. Serial No. 222,390.

To all whom, it may concern:

Beitknown that we,ALBERTE.ScHAAF and tions 3, thus forming a thickened or reinline 5 against the outer surfaces of the por- FRANK S. DAvis, citizens of the United States, forced bead or rib 6 at each longitudinal edge 1 residing at Toledo, in the county of Lucas of the bar. and State of Ohio, have invented certain new The bends above referred to may be formed and useful Improvements in Automobileupon any suitable machinery, such as brakes, Frames; and we do declare the following to die presses, rolls, orrthe like. The ribs or be a full, clear, and exact description of the beads 6, formed upon the margins of the bar, invention, such as will enable others skilled not only give a neat smooth finish to the in the-art to which it appertains to make and edges, of the ,bar, but add greatly to the use the same, reference being had to the acstrength and rigidity of the member and overcoinpanying drawings, and to the figures of come any tendency of the metal to crack or reference marked thereon, which form a part yield at its margins when heavy strains are of this specification. imposed upon the upper or closed portion 4. Our invention relates to automobile- While we have for illustration shown in frames, and more particularly to that class of the drawings aside bar of an automobileframes which is composed of strips of sheet frame, the blank for the bar being tapered at metal formed in cross-section in angular U each end, it is obvious that other members of shape. Frames formed of members of this the frame may be formed. as illustrated in character are found in practice to be light cross-section in Fig. 3, the blanks for such and fairly strong and rigid. bars being of rectangular or any other de- The object of our invention is to largely sired outline. It will also be seen that vaadd to the strength and rigidity of frames rious methods may be mnployed for forming out adding materially to the weight of the Having described our invention, what we structure. We accomplish this result by claim, and desire to secure by Letters Patent, means of the devices and arrangement of is arts hereinafter'described, and shown and A member for automobile-frames comprisillustrated in the accompanying drawings, in ing a metallic bar bent to present an exterior which bearing-surface as 4 and substantially paral- Figure l is a plan view of a blank for a side lel supporting members as 3, said supporting bar for an automobile-frame; Fig. 2, a side members being approximately perpendicular elevation of such side bar formed from the to the said bearing-surface and longitudinal blank shown in Fig. 1; and Fig. '3, a transstrengtheningebeads, as 6, formed upon the verse sectional elevation of the same, on an outer margins of the said supporting memenlarged scale, taken on line a: m, Fig. 2. hers, said strengthening-beadsbeing formed Like numerals of reference indicate like by folding back upon themselves the marparts throughout the drawings. gins of the supporting members 3 substan- In the drawings, 1 is a fir-t elongated piece tially as described.

of sheet metal slightly tapering toward each' In testimony whereof we affix our signaend. The sides of this blank are bent on lines tures in presence of two witnesses.

2 2 at a right an le to the plane of the blank ALBERT E. SCHAAF. and into paralle relation to form the two FRANK S. DAVIS. sides 3 3 and the connecting portion 4 of the Witnesses:

side bar. The margins of the parallel sides CLEM V. WAGNER,

are turned outwardly and backwardly on M. L. MAinrs. 

